/**
 * Copyright (C) 2009 - 2013 SC 4ViewSoft SRL
 * <p/>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * <p/>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p/>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.achartengine.chartdemo.demo.chart;

import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.graphics.Paint.Align;

import org.achartengine.ChartFactory;
import org.achartengine.chart.PointStyle;
import org.achartengine.model.XYMultipleSeriesDataset;
import org.achartengine.model.XYSeries;
import org.achartengine.renderer.XYMultipleSeriesRenderer;
import org.achartengine.renderer.XYSeriesRenderer;

import java.util.ArrayList;
import java.util.List;

/**
 * Average temperature demo chart.
 */
public class AverageTemperatureChart extends AbstractDemoChart {
    /**
     * Returns the chart name.
     *
     * @return the chart name
     */
    public String getName() {
        return "Average temperature";
    }

    /**
     * Returns the chart description.
     *
     * @return the chart description
     */
    public String getDesc() {
        return "The average temperature in 4 Greek islands (line chart)";
    }

    /**
     * Executes the chart demo.
     *
     * @param context the context
     * @return the built intent
     */
    public Intent execute(Context context) {
        String[] titles = new String[]{"Crete", "Corfu", "Thassos", "Skiathos"};
        List<double[]> x = new ArrayList<double[]>();
        for (int i = 0; i < titles.length; i++) {
            x.add(new double[]{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12});
        }
        List<double[]> values = new ArrayList<double[]>();
        values.add(new double[]{12.3, 12.5, 13.8, 16.8, 20.4, 24.4, 26.4, 26.1, 23.6, 20.3, 17.2,
                13.9});
        values.add(new double[]{10, 10, 12, 15, 20, 24, 26, 26, 23, 18, 14, 11});
        values.add(new double[]{5, 5.3, 8, 12, 17, 22, 24.2, 24, 19, 15, 9, 6});
        values.add(new double[]{9, 10, 11, 15, 19, 23, 26, 25, 22, 18, 13, 10});
        int[] colors = new int[]{Color.BLUE, Color.GREEN, Color.CYAN, Color.YELLOW};
        PointStyle[] styles = new PointStyle[]{PointStyle.CIRCLE, PointStyle.DIAMOND,
                PointStyle.TRIANGLE, PointStyle.SQUARE};
        XYMultipleSeriesRenderer renderer = buildRenderer(colors, styles);
        int length = renderer.getSeriesRendererCount();
        for (int i = 0; i < length; i++) {
            ((XYSeriesRenderer) renderer.getSeriesRendererAt(i)).setFillPoints(true);
        }
        setChartSettings(renderer, "Average temperature", "Month", "Temperature", 0.5, 12.5, -10, 40,
                Color.LTGRAY, Color.LTGRAY);
        renderer.setXLabels(12);
        renderer.setYLabels(10);
        renderer.setShowGrid(true);
        renderer.setXLabelsAlign(Align.RIGHT);
        renderer.setYLabelsAlign(Align.RIGHT);
        renderer.setZoomButtonsVisible(true);
        renderer.setPanLimits(new double[]{-10, 20, -10, 40});
        renderer.setZoomLimits(new double[]{-10, 20, -10, 40});

        XYMultipleSeriesDataset dataset = buildDataset(titles, x, values);
        XYSeries series = dataset.getSeriesAt(0);
        series.addAnnotation("Vacation", 6, 30);
        Intent intent = ChartFactory.getLineChartIntent(context, dataset, renderer,
                "Average temperature");
        return intent;
    }

}
